Key statistics
Satellite DELTA 1 R/B at a glance.
Uptime
17237
Days in orbit
Revolutions
≈ 13.9
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.8
Latest
Satellite identification and parameters
Extended collection of information and parameters for DELTA 1 R/B.
Object identification
Identified? True
Debris? False
Object name: DELTA 1 R/B
International designator: 1978-026C
Object number (NORAD): 10704
Object ID (CCSDS): 10704
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 103.732 minutes
Inclination: 98.8482 deg
SMA: 7313.115 km
Apoapsis: 987.482 km
Periapsis: 882.479 km
RAAN: 0.8974 deg
Eccentricy: 0.0071791
Argument of periapsis: 306.587 deg
Mean anomaly: 52.8697 deg
Mean motion: 13.88190649 rev/day
Mean motion (dot): 0.00000052 rev/day2
B* drag term: 0.000076796 1/REarth
Two-line elements (TLE)
Creation date: May 12, 2025, 7:41 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: May 12, 2025, 3:18 p.m. UTC
TLE line 0: 0 DELTA 1 R/B
TLE line 1: 1 10704U 78026C 25132.63818545 .00000052 00000-0 76796-4 0 9994
TLE line 2: 2 10704 98.8482 0.8974 0071791 306.5870 52.8697 13.88190649242009
Live tracking on map
Real-time ground track for satellite DELTA 1 R/B.
In-orbit conjunctions
A list of the most updated potential collisions computed for object DELTA 1 R/B.
Associated space launch
Earth observation satellite
DELTA 1 R/B was lifted into orbit during the mission ‘Delta 2910 | Landsat 3’, on board a Delta 2910 space rocket.
The launch took place on March 5, 1978, 5:54 p.m. from Space Launch Complex 2W.
For more information about the launch, click the button.

Delta 2910 | Landsat 3
Agency: N/A
Status: Launch Successful
Launch date: March 5, 1978, 5:54 p.m. UTC
Rocket: Delta 2910
Launch pad: Space Launch Complex 2W
Location: Vandenberg SFB, CA, USA
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